3Com III ISA, User Manual

Page: 19 / 110

Connecting to the Network 1-5
Connecting to the Network
This section describes how to connect the 3C509B NIC to an
Ethernet network using an RJ-45, BNC, or AUI port. Each 3C509B
NIC provides different network ports, as shown in
Figure 1-1 .
When you first install the NIC and power on the PC, the LED on
the NIC backplate lights, but the link is not active. To enable the
link, you must load the network drivers. See
“Link LED ” in this
chapter for more information.
Follow these steps to connect the RJ-45 port on the 3C509B-TPO,
TPC, TP, and COMBO NICs to the network:
1 Plug the RJ-45 connector on the twisted-pair network cable
into the RJ-45 port on the NIC backplate. See
Figure 1-3 .
Figure 1-3 Connecting to the RJ-45 Port on the 3C509B NIC
2 Connect the other end of the network cable to an active
network port.
Go to “Link LED ” later in this chapter.
RJ-45 port
RJ-45
connector